It comes with a Windows and Linux binary as well as source code, and those without an Infectus Mod can still experiment with it using the following 'dumpable dumps' files (via PS3 Infectus) available in iRC EFnet #PS3News when merged:

From the ReadMe file: This tool is used to interleave, then byteswaps both dumps of the PS3 NAND. Upon completion, it creates a 'user readable' file.

This file is then scanned by the tool, and the flash files are extracted to a folder. This folder is named PS3Nand-XXX.XXXX, where XXX.XXXX is the SDK Version magic in the flash (usually the version number of the firmware)